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Re: [Qemu-devel] [RFC PATCH 1/1] ceph/rbd block driver for qemu-kvm

From: Christoph Hellwig
Subject: Re: [Qemu-devel] [RFC PATCH 1/1] ceph/rbd block driver for qemu-kvm
Date: Tue, 25 May 2010 08:03:15 -0400
User-agent: Mutt/1.5.19 (2009-01-05)

On Tue, May 25, 2010 at 02:25:53PM +0300, Avi Kivity wrote:
> Currently if someone wants to add a new block format, they have to  
> upstream it and wait for a new qemu to be released.  With a plugin API,  
> they can add a new block format to an existing, supported qemu.

So?  Unless we want a stable driver ABI which I fundamentally oppose as
it would make block driver development hell they'd have to wait for
a new release of the block layer.  It's really just going to be a lot
of pain for no major gain.  qemu releases are frequent enough, and if
users care enough they can also easily patch qemu.

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